WO2019011655A1 - Procédé de signalisation d'une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants - Google Patents
Procédé de signalisation d'une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants Download PDFInfo
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- WO2019011655A1 WO2019011655A1 PCT/EP2018/067266 EP2018067266W WO2019011655A1 WO 2019011655 A1 WO2019011655 A1 WO 2019011655A1 EP 2018067266 W EP2018067266 W EP 2018067266W WO 2019011655 A1 WO2019011655 A1 WO 2019011655A1
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- terminal
- notification message
- content
- information
- event notification
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- 238000000034 method Methods 0.000 title claims abstract description 68
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/2668—Creating a channel for a dedicated end-user group, e.g. insertion of targeted commercials based on end-user profiles
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
Definitions
- Terminal substitution signaling method terminal substitution method, computer program products, system and corresponding terminal.
- the field of the invention is that of the substitution of content within a broadcast stream (that is to say the replacement of a content by another). We also talk about inserting content, or stall.
- the invention relates to a method of signaling, at a terminal, the substitution of a content broadcast via a broadcast network to which the terminal is connected by targeted content for the terminal in question, as well as a substitution method. correspondent implemented in the terminal.
- the invention has many applications, in particular, but not exclusively, in the field of targeted advertising, the method described allowing a personalized (targeted) advertisement to be returned to a terminal instead of an advertisement. broadcast by a broadcast network.
- the protocol SCTE for "Society of Cable Telecommunications Engineers" in English
- SCTE for "Society of Cable Telecommunications Engineers” in English
- the orders in question are either inserted in the SDI stream (for "Serial Digital Interface” in English) produced at the output of the recording studio, or conveyed in parallel with the SDI stream via, for example, an IP connection (for "Internet Protocol ").
- the orders in SCTE format 104 are conventionally received by the coder which translates them in SCTE format 35 (another protocol) and inserts them in its output MPEG-TS (for "Moving Picture Experts Group - Transport Stream" in English) output, to destination of a multiplexer also embedded in the headend.
- the multiplexer thus realizes stalls between a national program and a local program on the basis of such received orders to generate a corresponding multiplexed data stream.
- Such a method must also allow the substitution of content in a flexible manner in order to preserve the user experience, for example by reducing the discontinuities in the rendering to the user that may result from the switchover between the broadcast content and the substitute content. targeted for the terminal in question.
- a method of signaling, at a terminal, the substitution of a content broadcast via a broadcast network to which the terminal is connected by a targeted substitution content at least for the terminal comprises:
- At least one substitution information packet comprising temporal information indicative of a time of execution by the terminal of at least one action for the substitution of the content broadcast by the substitution content;
- the invention proposes a new and inventive solution to allow the signaling to a terminal, via a broadcast network, the substitution of a content broadcast by targeted content (eg a targeted advertisement for a user of the terminal in question) .
- targeted content eg a targeted advertisement for a user of the terminal in question
- the claimed method proposes to signal the terminal that it must perform actions allowing the substitution in question (eg start decoding the targeted content, restore the decoded targeted content, etc.) by sending notification messages. events containing no temporal information concerning the date (with reference to the broadcast content) to which the substitution in question is to take place.
- an action for the substitution is executed by the terminal without knowledge of a temporal information indicative of a time of execution, by the terminal, of the action in question.
- the terminal executes the action in question immediately upon receipt of the event notification message, ie after execution latency only related to constraints of hardware implementations in the terminal, the execution being triggered by receiving the corresponding event notification message from the terminal.
- the signaling of the substitution can be based on existing standards, although not dedicated to the signaling of so-called “real time” events, ie whose notification messages do not contain a temporal reference allowing a synchronous execution with respect to the broadcast data stream (eg "streamevent” messages in DSM-CC format (for "Digital Storage Media Command and Control”).
- the at least one substitution information packet comprises at least one identifying information, the at least one action being a function of the at least one identification information.
- the generation includes encapsulation of the at least one identification information in the at least one event notification message.
- a particular action to be executed (e.g. start decoding the targeted content, rendering the decoded targeted content, etc.) is reported in a simple and direct manner to the terminal.
- the at least one substitution information packet comprises a unique identification information that can take several values each associated in the terminal with a set of at least one action.
- the generation includes encapsulation of the unique identification information in the at least one event notification message.
- a particular event (e.g. the beginning of the broadcast content to be substituted, the end of the broadcast content to be substituted, etc.) is reported to the terminal via the identification information.
- the event notification messages tag the stream of data conveying the broadcast content.
- the terminal thus deduces from the event that is notified to it one or more actions to be performed for the substitution of the broadcasted content.
- the action or actions to be performed are obtained in the terminal via an algorithm taking into account the event in question but also the events that have been signified at the terminal prior to the event in question.
- the at least one substitute information packet further comprises:
- the insertion is a function of the first information and the generation step includes encapsulation of the filtering information and the second information in the at least one event notification message.
- an event notification message can be associated with a particular terminal, thereby allowing better targeting of the substitute contents.
- the use of the same first and second information as well as the same filtering information for several terminals among the plurality of terminals makes it possible to signal the substitution of the same content broadcast to the various terminals in question.
- the signaling method further comprises:
- Another insertion, in the data stream, of at least one image making it possible to initiate a decoding, by the terminal, of the data stream,
- a time difference, in the data stream, between the at least one image and the at least one event notification message being greater than an execution latency of the identified action after receiving the at least one event notification message.
- the decoding by the terminal of the broadcast content resumes upon the reception of the image in question (eg an intra-coded intra picture or image I placed at the beginning of a GOP (for " Group Of Picture "), thus minimizing the wait before the start of the resumption of the decoding of the broadcasted content, and therefore the waiting time of the waiting elements as well as the risk of a lack of restitution to the user (eg a black screen) at the end of the rendering of such a waiting element.
- the at least one substitution information packet also includes:
- the device managing the substitution remains master of the insertion (as well as the moment of insertion if necessary) of such an image in order to optimize the transitions between the renditions of the content broadcast and the content targeted for a given terminal.
- the at least one substitution information packet follows a SCTE protocol for "Society of Cable Telecommunications Engineers" in English, 35 or 104.
- the temporal information used for the insertion of the event notification messages is easily transmitted to the device implementing the signaling method via a standardized protocol defining a temporal reference field for synchronizing events (here, for example, the event notification messages) with a clock of the data stream conveying the content broadcast within the broadcast network.
- the insertion step is implemented at least two times so that:
- a first event notification message is inserted at a first instant in the data stream conveying said broadcast content within the broadcast network, the first instant substantially corresponding to a beginning of a first inter-sequence preceding the broadcasted content; to substitute, the first event notification message inducing at least a restitution of a first waiting element by the terminal, the restitution of the first waiting element being triggered by a reception of the first event notification message by the terminal and performed without knowledge of a first time information indicative of a time of execution by the terminal of the return of the first waiting element; and
- a second event notification message is inserted at a second instant in the data stream conveying the content broadcast within the broadcast network, the second instant substantially corresponding to a beginning of the broadcast content to be substituted, the second notification message; event causing at least one masking of the first waiting element by the terminal, the masking of the first waiting element being triggered by a reception of the second event notification message by the terminal and made without knowledge of a second temporal information indicative of a time of execution by the terminal of
- the insertion step is implemented at least two times so that:
- a third event notification message is inserted at a third instant in the data stream conveying the content broadcast within the broadcast network, the third instant substantially corresponding to a start of a second interscequence according to the broadcast content to be substituted.
- the third event notification message inducing at least a return of a second waiting element by the terminal, the restitution of the second waiting element being triggered by a reception of the third event notification message by the terminal and performed without knowledge of a third time information indicative of a time of execution by the terminal of the return of the second waiting element;
- a fourth event notification message is inserted at a fourth instant in the data stream conveying the content broadcast within the broadcast network, the fourth instant substantially corresponding to a start of another content broadcast after the second broadcast. sequence, the fourth message of event notification inducing at least one masking of the second waiting element by the terminal, the masking of the second waiting element being triggered by a reception of the fourth event notification message by the terminal and carried out without knowledge of a fourth time information indicative of a time of execution by the terminal of the masking of the second waiting element.
- a waiting element is restored during the transition between the end of the restitution of the targeted substitution content and the resumption of the restitution of the broadcasted content, thus avoiding a lack of restitution to the user (eg a black screen ) during the transition in question (eg while the decoder initiates a new decoding).
- At least one other image for initiating a decoding, by the terminal, of said other broadcast content is inserted into the data stream.
- the third event notification message also triggers an action inducing decoding of said other broadcast content.
- a time gap, in the data stream, between said at least one other image and the third event notification message is greater than an execution latency of the action inducing the decoding of said other content broadcast by said terminal.
- the decoding by the terminal of the other broadcast content resumes upon the reception of the image in question (eg an internal coded image of intra type or image I placed at the beginning of a GOP (for "Group Of Picture” ), thereby minimizing the wait before the start of the resumption of the decoding of the broadcasted content.
- the image in question eg an internal coded image of intra type or image I placed at the beginning of a GOP (for "Group Of Picture”
- a method of substitution, by a terminal, of content broadcast via a broadcast network to which the terminal is connected by a targeted substitution content at least for the terminal According to such a method the terminal performs:
- An execution of at least one action for the substitution of the content broadcast by the substitute content the execution being triggered by the reception of the said content by the least an event notification message by the terminal and performed without knowledge of a temporal information indicative of a time of execution by the terminal of said at least one action.
- the action in question is executed by the terminal without knowledge of a temporal information indicative of a time of execution, by the terminal, of the action in question.
- the terminal executes the action in question immediately upon receipt of the event notification message, ie after execution latency only related to constraints of hardware implementations in the terminal, the execution being triggered by receiving the corresponding event notification message from the terminal.
- the substitution is controlled (especially in terms of execution time) even though the terminal only supports event notification messages containing no temporal information concerning the date (with reference to the content broadcast) to which the substitution must take place.
- the signaling in question can be based on existing standards, although not dedicated to the signaling of so-called "real-time" events, ie whose notification messages do not contain a temporal reference allowing a synchronous execution with respect to the flow of data.
- broadcast data eg as supported by Hybrid Broadcast Broadband TV type hybrid terminals.
- the execution comprises obtaining at least one identification information encapsulated in the at least one event notification message.
- the at least one action is a function of the at least one identification information obtained.
- a particular action to be executed (e.g. start decoding the targeted content, rendering the decoded targeted content, etc.) is reported in a simple and direct manner to the terminal.
- the execution comprises obtaining a unique identification information that can take several values associated with each, in the terminal, to a separate game of at least one action.
- the at least one action is a function of the unique identification information obtained.
- a particular event (e.g. the beginning of the broadcast content to be substituted, the end of the broadcast content to be substituted, etc.) is reported to the terminal via the identification information.
- the event notification messages tag the stream of data conveying the broadcast content.
- the terminal thus deduces from the event that is notified to it one or more actions to be performed for the substitution of the broadcasted content.
- the action or actions to be performed are obtained in the terminal via an algorithm taking into account the event in question but also the events that have been signified at the terminal prior to the event in question.
- the terminal also performs another reception, via a broadband network to which the terminal is connected, of:
- a second piece of information making it possible to identify an event stream in the elementary stream component, the at least one event notification message being inserted into the event stream;
- Filtering information the at least one event notification message further encapsulating the filtering information
- the use of the same first and second information as well as the same filtering information for a plurality of terminals among the plurality of terminals makes it possible to signal the substitution of the same broadcasted content for the several terminals in question.
- the terminal also performs reception of the targeted content via the broadcast network or via the broadband network to which the terminal is connected.
- the terminal can receive the targeted content in question either via the broadcast network (eg via a contents carousel as defined by the HbbTV standard), allowing the targeted content to be obtained even in the absence of another connection. network, or with a content server via a broadband network (eg Internet), to minimize the load of the broadcast network.
- the broadcast network eg via a contents carousel as defined by the HbbTV standard
- a content server via a broadband network (eg Internet)
- the execution step is implemented at least twice so that:
- a restitution of a first waiting element is executed by the terminal, the restitution of the first waiting element being triggered by a reception of a first event notification message by the terminal and carried out without knowledge of a first temporal information indicative of a time of execution by the terminal of the restitution of the first waiting element, the first event notification message being inserted at a first instant in the data stream conveying the content broadcast within the broadcast network, the first instant substantially corresponding to a beginning of a first interscequence preceding the broadcast content to be substituted;
- a masking of the first waiting element is executed by the terminal, the masking of the first waiting element being triggered by a reception of a second event notification message by the terminal and made without knowledge of a second information item; temporal indicative of a moment execution by the terminal masking the first waiting element, the second event notification message being inserted at a second time in the data stream conveying the broadcast content within the broadcast network, the second time corresponding substantially at the beginning of the broadcast content to be substituted.
- the first event notification message also triggers an action inducing decoding of the substitution content by a decoder of the terminal, the decoder generating a first event when the substitution content is available for playback.
- the terminal performs the masking of the first waiting element and restores the substitution content as soon as the decoder has generated the first event.
- the restitution of the first waiting element is of shorter duration than in the case where the masking of the first waiting element and the restitution of the substitution content are triggered by the reception of the second event notification message, maximizing thus the time available for the restitution the substitute content.
- the execution step is implemented at least two more times so that:
- a restitution of a second waiting element is executed by the terminal, the restitution of the second waiting element being triggered by a reception of a third event notification message by the terminal and carried out without knowledge of a third time information indicative of a time of execution by the terminal of the restitution of the second waiting element, the third event notification message being inserted at a third time in the data stream conveying the content broadcast within the broadcast network, the third instant substantially corresponding to a beginning of a second interscequence following the broadcast content to be substituted;
- a masking of the second waiting element is executed by the terminal, the masking of the second waiting element being triggered by a reception of a fourth event notification message by the terminal and carried out without knowledge of a fourth information item; temporal indicative of a time of execution by the terminal of the masking of the second waiting element, the fourth event notification message being inserted at a fourth instant in the data stream conveying the content broadcast within the broadcast network , the fourth instant corresponding substantially to a start of another content broadcast according to the second inter-sequence.
- a waiting element is restored during the transition between the end of the restitution of the targeted substitution content and the resumption of the restitution of the broadcasted content, thus avoiding a lack of restitution to the user (eg a black screen ) during the transition in question (eg while the decoder initiates a new decoding).
- the decoder generates a second event when the decoding of the substitution content is complete.
- the terminal executes the restitution of the second waiting element as soon as the decoder has generated the second event.
- the return of the second waiting element is of longer duration than in the case where the return of the second waiting element is triggered by the reception of the third event notification message. In this way, the risk of encroaching on the beginning of the other content broadcast after the second inter-sequence is minimized. In addition, the risk of a lack of restitution to the user (e.g. a black screen) at the end of the restitution of the substitute content is thus avoided.
- the filtering information is an identifier of the broadcasted content.
- the quantity of data conveyed in the system implementing the signaling method is minimized, the same identifier making it possible to indicate to the different entities of the system and to the terminal the content to be substituted, as well as to the terminal to filter the messages of notifications of events intended for it.
- the at least one action defined via the first encapsulated substitution information belongs to the group comprising:
- the method claimed makes it possible to signal the terminal that it must start decoding the targeted content or the content broadcast via a notification message containing no temporal information concerning the date (with reference to the broadcast content) at which this decoding switchover must take place. It is the same for the restitution of the content thus decoded, for example on a screen of the terminal.
- a waiting message eg a moving logo, an animated Graphics Interchange Format (GIF), an inter-advertising sequence, an audio waiting message, etc.
- GIF Graphics Interchange Format
- an audio waiting message etc.
- a waiting message can be restored (so visual and / or sound) while the decoder initiates a new decoding, thus avoiding a lack of restitution to the user (eg a black screen) during this time.
- the execution by the terminal of the said at least one action is performed with a predetermined effective execution latency, different from an intrinsic latency of the terminal and common with at least one other terminal for which is also targeted the substitution content.
- the predetermined effective execution latency corresponds to the intrinsic latency of said terminal (ie to the minimum latency related to the hardware implementation of the terminal) to which is added a delay (eg a delay) allowing to obtain the latency of predetermined effective execution in question.
- a delay eg a delay
- the terminal is a hybrid terminal supporting the HbbTV standard, for "Hybrid Broadcast Broadband TV" in English.
- the data stream is in MPEG-TS format, for "Moving Picture Experts Group - Transport Stream” in English and the at least one event notification message is a "stream event" in DSM format.
- -CC for "Digital Media Storage Media Control and Control”.
- the first information corresponds to the "Component_TAG” field indicating the PID (for "Packet IDentifier” in English) in which the notification events are inserted
- the second information corresponds to the "EventJD” field identifying the notification events according to this standard.
- the invention also relates to a computer program comprising program code instructions for the implementation of a signaling method or a substitution method (according to any one of its various embodiments), when it is run on a computer.
- a broadcasting system configured to signal, to a terminal, the substitution of a content broadcast via a broadcast network to which the terminal is connected by a targeted substitution content at the terminal. less for the terminal.
- a broadcasting system comprises:
- Means for obtaining at least one packet of substitution information comprising temporal information indicative of a time of execution by the terminal of at least one action for the substitution of the content broadcast by the substitution content;
- Such a broadcasting system is particularly suitable for implementing the signaling method according to the invention (according to any one of the various embodiments mentioned above).
- a terminal configured to substitute broadcasted content via a broadcast network to which the terminal is connected by a content of substitution ci wheat at least for the terminal.
- a terminal comprises:
- Means for executing at least one action for the substitution of the content broadcast by the substitution content the execution being triggered by the reception of said at least one event notification message by the terminal and carried out without knowledge of the temporal information indicative of a time of execution by the terminal of said at least one action.
- Such a terminal is particularly suitable for implementing the substitution method according to the invention (according to any one of the various embodiments mentioned above).
- FIG. 1 illustrates an example of a television broadcasting system to which a terminal is connected, according to one embodiment of the invention
- Figures 2a and 2b illustrate examples of data packet and event notification message structures as used for signaling between the entities of Figure 1;
- FIG. 3 illustrates the steps of a method of signaling, at a terminal, the substitution of a content broadcast via a broadcast network according to different embodiments of the invention
- FIG. 4 illustrates the steps of a method of substitution, by a terminal, of a content broadcast via a broadcasting network according to different embodiments of the invention
- Fig. 5 illustrates an example of sequencing insertion of event notification messages into a data stream according to one embodiment of the invention
- FIG. 6 illustrates an exemplary structure of a broadcasting system enabling the method of FIG. 3 to be implemented.
- FIG. 7 illustrates an exemplary structure of a terminal enabling the method of FIG. 4 to be implemented.
- the general principle of the technique described consists in obtaining at least one packet of substitution information comprising temporal information indicative of a time of execution by a terminal of at least one action for the substitution of a content broadcast by a user. substitution content.
- An event notification message is generated and inserted into a data stream carrying the broadcast content within a broadcast network at a given time slot by the temporal information in question.
- the event notification message causes the execution of the at least one action in question.
- the execution is triggered by a reception of an event notification message by the terminal and is performed without knowledge of the temporal information indicative of the execution time by the terminal of said at least one action in question.
- the signaling of the substitution can be based on standards already implemented in some terminals although not dedicated to the signaling of events called "real time", ie standards whose notification messages do not contain a temporal reference allowing synchronous execution with respect to the broadcast data stream.
- FIG. 1 An example of a television broadcasting system 100 to which a terminal 110 is connected according to a first embodiment of the invention is described in connection with FIG.
- the terminal 110 is a consumer television connected on the one hand to a 120 television broadcast network and on the other hand to a broadband network 130 of the internet type.
- a terminal 110 is sometimes also called “connected TV”, “SmartTV”, “Digital TV”, “Internet TV”, “Interactive TV”, “hybrid TV”, “PCTV”, “Hybrid Broadcast Broadband TV”, “HbbTV “, Or” H4TV ".
- the terminal 110 is compatible with the HbbTV standard so that it can download, via the broadband network 130, a particular HbbTV application (allowing the implementation of the substitution by the terminal 110, as detailed below) from an internet server. static 100a.
- a download is done on the basis of received information (eg an address of the URL type (for "Uniform Resource Locator” in English)) for example via a DVB AIT table (for "Digital Video Broadcasting" and "Application Information Table” in English) contained in the MPEG-TS format data stream received from the television broadcast system 100 via the broadcast network 120.
- the broadcast network 120 is for example a TNT network (for "Digital Terrestrial Television") using the DVB-T standard to broadcast the data stream in MPEG-TS format.
- the broadcast network 120 is a satellite network using the DVB-S standard, or a cable network using the DVB-C standard.
- the broadcast network 120 identifies with a network based on the use of an IP transport protocol and the terminal 110 is for example a "Set-top box" including (or communicating with ) A network gateway connected to the broadband network 130.
- IP transport protocol is for example the UDP / IP protocol (for "User Datagram Protocol” in English) for multicast type broadcasting, or the TCP / IP protocol. (for "Transmission Control Protocol” in English) for a broadcast unicast type as preferred by so-called OTT broadcasters (for "Over The Top” in English).
- the network based on the use of an IP transport protocol shares physical resources with the broadband network 130.
- the terminal 110 is configured to receive event notification messages (230) contained in the data stream in the MPEG-TS format carried by the broadcast network 120.
- event notification messages (230) are, for example, "StreamEvents" in DSM-CC format (for "Digital Storage Media Command and Control”).
- the television broadcast system 100 includes an advertising management platform 100c which provides, to a substitution management device 100b (discussed in more detail below), including identification information (2120b31) to be encapsulated in an event notification message (230) to the terminal 110.
- the identification information (2120b31) identifies an action to be executed by the terminal 110.
- Such an action is for example: a decoding of a targeted content for the terminal 110, a restitution of the targeted content under a decoded form, a resumption of the decoding of the diffused content, a restitution of a waiting element, etc.
- the identifying information (2120b31) identifies a particular event.
- Such an event is for example: the beginning of the broadcast content to be substituted, the end of the broadcast content to be substituted, etc.
- event notification messages mark the flow of data conveying the broadcast content.
- the terminal thus deduces from the event that is notified to it one or more actions to be performed for the substitution of the broadcasted content (eg via the execution of an algorithm that takes into account one or more identification information (2120b31) identifying such special events).
- the advertising management platform 100c provides the substitution management device 100b furthermore:
- a first piece of information (2120bl) for identifying an elementary stream component of the data stream in the MPEG-TS format eg the "component_tag" field in the DSM-CC format, this field indicating the PID of the elementary stream component in question;
- a second piece of information (2120b2) for identifying an event stream in the elementary stream component in question (eg the "event_id" field in the DSM-CC format) in which a video coder 100f will insert the notification messages of events (230) to the terminal 110; and
- the advertising management platform 100c first obtains from the broadcaster managing the broadcast network 120 the "DVB triplet" field enabling it to uniquely identify the content broadcast via the broadcast network 120. question, as well as an identifier (2120b33) (eg an "AdvertJD" field), for identifying an upcoming advertisement in the broadcast stream.
- an identifier eg an "AdvertJD” field
- such an identifier also conveys other information (eg a "SlotJD" field) relating to the forthcoming advertisement in question, for example the transit instance identifier of this advertisement over a predefined period (eg since the beginning of the day, the past week, etc.). In this way, the advertising management platform 100c decides whether or not the substitution of the advertisement to come into question on the terminal 110.
- the advertising management platform 100c When the decision to substitute the advertisement identified by the identifier (2120b33) is taken, the advertising management platform 100c thus generates the first (2120bl) and second (2120b2) information and the filtering information (2120b32). More particularly, the information in question is transmitted to a substitution management device 100b which retransmits them:
- the static internet server 100a which in turn transmits them to the terminal 110 via the broadband network 130 (eg via an XML format file (for "Extensible Markup Language” in English) for the first (2120bl) and second (2120b2) information, and via HbbTV application for filtering information (2120b33)).
- the broadband network 130 eg via an XML format file (for "Extensible Markup Language” in English) for the first (2120bl) and second (2120b2) information, and via HbbTV application for filtering information (2120b33)
- XML format file for "Extensible Markup Language” in English
- HbbTV application for filtering information (2120b33
- an insertion trigger device 100d whose function is to make it possible to synchronize the events generated by the advertising management platform 100c with the data stream broadcast via the broadcast network
- the advertising management platform 100c also provides the identifier (2120b33) of the broadcast content to be substituted for the insertion triggering device 100d (via the substitution management device 100b), as well as the information of the advertisement.
- identification (2120b31) this identification information (2120b31) for identifying, directly or indirectly, an action to be performed by the terminal 110 as described above).
- the insertion trigger device 100d obtains from the SDI reader 100th synchronous time references of the SDI data stream that it generates (SDI stream which is intended to be multiplexed in the data stream broadcast via the broadcast network 120 after encoding in a video coder 100f, multiplexing performed by an MPEG / DVB multiplexer 100g, and generation of the modulated broadcast signal by a DVB modulator 100h), for example by periodically reading such information on the SDI reader 100e.
- the insertion trigger device 100d determines the synchronous time information of the SDI stream which defines a time at which the action identified by the identification information (2120b31) must be executed by the terminal 110.
- the time information is "timecode" in the SCTE 104 format.
- the insertion triggering device 100d generates substitution information packets (210) in the format SCTE 104 and transmits them to the video coder 100f (eg via an internet connection) so that this encoder converts them to the SCTE 35 format and inserts them synchronously into the encoded data stream it delivers.
- the time information is not "timecodes" in the SCTE 104 format, but "timestamps” PTS
- the insertion trigger device 100d generates substitution information packets (220) in the SCTE format 35 and transmits them not to the video encoder. 100f, but directly to the MPEG / DVB 100g multiplexer (eg via an internet connection) for generating the corresponding event notification messages (230) and synchronous insertion in the multiplexed data stream that this multiplexer delivers.
- the insertion trigger device 100d does not transmit any packet of substitution information (210, 220), the video coder 100f, and the MPEG / DVB multiplexer 100g.
- the insertion triggering device 100d transmits the information initially transmitted by the advertisement management platform 100c (in particular the identification information (2120b31), the first (2120bl) and the second (2120b2) information, the filtering information (2120b32) and the identifier (2120b33) of the broadcast content to be substituted as introduced above) directly to the 100th SDI drive.
- the SDI reader 100e that performs the above-described operations of generating the substitution information packets (210) at the end of synchronous insertion in the SDI data stream.
- the substitution management device 100b manages the consistency of the data supplied to the terminal 110 by the static internet server 100a via the broadband network 130, and the signaling contained in the data stream. data received by the terminal 110 via the broadcast network 120.
- the filtering information (2120b32) is identical to the identifier (2120b33) of the broadcast content to be substituted.
- the amount of information managed and transmitted by the advertising management platform 100c is minimized, thereby simplifying the implementation of the described technique.
- the advertising management platform 100c also provides, to the substitution management device 100b, insertion information (2120b4) indicating whether an image for initiating a decoding of the streaming signal. given by the terminal 110 (eg an internal coded picture of the intra type or I picture placed at the beginning of a GOP) must be inserted by the video coder 100f in the data stream in question, for example after a notification message d event (230).
- insertion information 2120b4 indicating whether an image for initiating a decoding of the streaming signal. given by the terminal 110 (eg an internal coded picture of the intra type or I picture placed at the beginning of a GOP) must be inserted by the video coder 100f in the data stream in question, for example after a notification message d event (230).
- the television broadcast system 100 also includes the SDI reader 100e, which generates a stream in SDI format sent to the video coder 100f.
- the SDI reader is for example a spectrumX player marketed by Harmonie. Such equipment is particularly able to insert commands in SCTE 104 format in the SDI stream that it delivers.
- the SDI reader 100e supplies the insertion trigger device 100d with the synchronous time references of the SDI data stream it generates.
- the SDI reader 100e itself generates the substitution information packets (210) on the based on the information provided by the insertion trigger device 100d and inserts it into the SDI stream that it delivers.
- the television broadcast system 100 also includes the video coder 100f, which generates the MPEG-TS MPEG4 stream from the SDI stream received from the SDI reader 100e.
- the video coder 100f is particularly capable of transforming commands in SCTE format 104 present in the received SDI stream into commands in the SCTE format 35. More particularly, the video coder 100f is capable of transforming the time references (or "timecodes") used by the SCTE 104 standard in PTS time references used by the SCTE 35 standard.
- substitution information packets (210, 220) received contain insertion information (2120b4) or not
- the data stream eg an intra-coded intra picture or I picture placed at the beginning of a GOP
- the image in question is inserted at the location indicated by the time information present in the corresponding substitution information packet (210).
- the video coder 100f does not receive insertion information (2120b4) (eg the advertising management platform 100c does not provide insertion information (2120b4)), but systematically inserts a time slot according to the time information present in the substitution information packet (210) considered, an image for initiating a decoding by the terminal 110 of the data stream. More particularly, the image in This question is inserted so as to minimize the transitions at the time of decoding switches at the terminal as discussed below in connection with FIGS. 2a and 2b. This systematic aspect of the insertion makes it possible to minimize the amount of information transmitted between the entities of the television broadcasting system 100.
- the television broadcasting system 100 also includes the MPEG / DVB multiplexer 100g, which produces the multiplexed signal (or "multiplex") which is broadcast via the broadcast network 120 on the basis of the MPEG-TS stream delivered by the coder video lOOf.
- the MPEG / DVB multiplexer 100g which produces the multiplexed signal (or "multiplex") which is broadcast via the broadcast network 120 on the basis of the MPEG-TS stream delivered by the coder video lOOf.
- the MPEG / DVB 100g multiplexer aggregates the streams coming from several video encoders to produce the multiplex which will then be broadcast.
- the MPEG / DVB multiplexer 100g On the other hand, on the basis of received SCTE format data packets (220) (either via the MPEG-TS stream from the video coder 100f in the first embodiment, or directly from the insertion trigger device 100d in the second embodiment), the MPEG / DVB multiplexer 100g generates the corresponding event notification messages (230), here "StreamEvents" messages in the DSM-CC format.
- such event notification messages (230) encapsulate the information conveyed by the substitution information packets (220), and especially the second (2120b2) information, the identification information (2120b31), the filtering information (2120b32) and the identifier (2120b33) of the broadcast content to be substituted (the filtering information (2120b32) may be equal to this identifier (2120b33) in some signaling variants); in this case, a single field containing the information in question is encapsulated in the corresponding event notification message (230), thereby minimizing the amount of information conveyed).
- the 100g MPEG / DVB multiplexer inserts the event notification message (230) into the multiplexed stream that it generates at the time point identified by the time information contained in the substitution information packet (220). ) corresponding. It is noteworthy, however, that the event notification message (230) itself does not contain any date of execution information by the terminal 110 of the action (s) corresponding to the identification information (2120b31) encapsulated in the event notification message ( 230) in question.
- such an event notification message (230) is inserted into the event flow identified by the second information (2120b2) within the elementary flow component identified by the first information (2120bl) at the instant identified by the time information included in the corresponding substitution information packet (220).
- the television broadcasting system 100 also includes the DVB modulator 100h, which generates the modulated signal carrying the data stream delivered by the MPEG / DVB 100g multiplexer through the broadcast network 120.
- FIGS. 2a and 2b show examples of data packet structures 210, 220 as well as event notification messages 230 as used for signaling between the entities of FIG. 1.
- the data packets 210 exchanged between the insertion trigger device 100d and the video coder 100f are in the format SCTE 104, this format being interpretable by the video coder 100f. question.
- Such data packets 210 in the SCTE format 104 are also used by the SDI reader 100e in the third embodiment (not shown in FIG. 1) for transmission to the video coder 100f.
- such a data packet 210 includes a header 210a and a payload field 210b.
- the header 210a comprises specific header fields of the SCTE 104 standard, and in particular a field encapsulating the temporal information introduced above in relation with FIG. 1 (ie the time information obtained by the device of FIG. 100d insertion trigger based on both the identifier 2120b33 of the broadcast content to be substituted delivered by the advertisement management platform 100c via the substitution management device 100b, and SDI-related time data provided by the 100th SDI drive).
- the useful data field 210b includes in particular the data initially delivered by the advertising management platform 100c via the substitution management device 100b introduced above in connection with FIG. 1, namely:
- the first information 2120bl (e.g. the "component_tag” field in the DSM-CC format);
- Identification information 2120b31 identifying an action to be performed by the terminal 110;
- the identifier 2120b33 of the broadcasted content to be substituted.
- the filtering information 2120b32 is equal to the identifier 2120b33.
- a single field containing the information in question is encapsulated in the corresponding event notification message 230, thereby minimizing the amount of information conveyed.
- the time information encapsulated in the header of the packet indicates a location in the data stream broadcast via the broadcast network 120 to which the corresponding event notification message 230 must be inserted in order to trigger at least one action by the terminal 110 at a suitable time for the desired substitution. This even though the event notification message 230 in question does not contain temporal information relating to their execution.
- the video coder 100f converts the data packet 210 to the SCTE 104 format into a data packet 220 in the SCTE 35 format in the same manner as it transforms the data stream from the SDI format into an MPEG-TS stream.
- the data fields 2120b1 to 2120b4 described above are then encapsulated in the portion of the payload 220b of the data packet 220 in SCTE format 35.
- the temporal information encapsulated in the header 210a of the data packet 210 in the SCTE format 104 is converted into a new time information encapsulated in a header 210b of the data packet 220 in the SCTE format 35.
- the "timecode In the format SCTE 104 is converted into a "timestamp" PTS (for "Presentation Time Stamps" in English) in the format SCTE 35 so as always to indicate a location, in the data stream broadcast via the broadcast network 120, to which the message
- the corresponding event notification 230 must be inserted coherently with the information initially delivered by the ad management platform 100c.
- the data packet 220 in the SCTE format 35 is then inserted into the MPEG-TS stream in MPEG4 format generated by the video coder 100f before transmission to the MPEG / DVB multiplexer 100g.
- Such a data packet 220 in SCTE format 35 is also used by the insertion trigger device 100d for transmission directly to the MPEG / DVB multiplexer 100g in the second embodiment (not shown in FIG. 1).
- the useful data field 210b also includes the insertion information 2120b4 ( eg via a "command" field for example) in question.
- another temporal information encapsulated in the header of the data packet 210 indicates a location in the data stream broadcast via the broadcast network 120 to which the image makes it possible to initiate a decoding, by the terminal 110, of the data stream must be inserted.
- the video coder 100f inserts the image in question into the data stream at a time slot indicated by the other time information encapsulated in the header of the data packet 210 in question.
- the MPEG / DVB multiplexer 100g converts the data packet 220 to the SCTE 35 format into an event notification message 230, or "StreamEvent" in the DSM-CC format.
- Such an event notification message 230 includes:
- the identification information 2120b31 identifying an action to be performed by the terminal 110;
- the event notification message 230 includes the standardized fields of the "StreamEvent" messages in the DSM-CC format, namely a field containing a table header 230al (or “table header” in English), a field containing a CC (for "cyclic redundancy check” in English) table 230a2 (or “CRC table” in English), and a header field 230a3 (or "packet header” in English).
- the MPEG / DVB multiplexer 100g inserts such an event notification message 230 into the elementary flux component identified by the first information item 2120bl, and at the instant defined by the time information encapsulated in the header 210b of the packet 220 data in the corresponding SCTE 104 format.
- the instant at which the event notification message 230 is inserted into the stream delivered by the MPEG / DVB multiplexer 100g is accurately controlled by the system 100.
- FIGS. 3 and 4 the steps of a method of signaling, at the terminal 110, the substitution of a content broadcast via the broadcast network 120, as well as the steps of a method of broadcasting, are described. substitution, by the terminal 110, of a content broadcast via the broadcast network 120, according to various embodiments of the invention.
- a substitution information packet 220 in the SCTE format 35 comprising a temporal information indicative of a time of execution by the terminal 110 of the least one action for substitution of the content broadcast by the substitution content, is obtained by the MPEG / DVB multiplexer 100g.
- the substitute information packet 220 in the SCTE format obtained by the MPEG / DVB multiplexer 100g is provided either by the video coder 100f (in this case).
- the substitute information packet 220 in the SCTE format results from the conversion, by the video coder 100f, of a substitution information packet 210 in the corresponding SCTE format 104 provided either by the SDI reader 100e, or directly by the insertion trigger device 100d), or directly by the insertion trigger device 100d.
- an event notification message 230 (here a "StreamEvent" message in the DSM-CC format) is generated by the MPEG / DVB 100g multiplexer taking up firstly the second information 2120b2 and the proprietary data 2120b3 conveyed in the substitution information packet 220 as described above in relation to FIGS. 2a and 2b.
- the MPEG / DVB multiplexer 100g inserts the event notification message 230 into the data stream conveying the content broadcast via the broadcast network. 120.
- the event notification message 230 is inserted into the data stream at a time location dependent on the information time in the substitute information packet 220 obtained as described above.
- the terminal 110 receives the event notification message 230 inserted into the data stream by the MPEG / DVB multiplexer 100g.
- the terminal 110 executes the at least one action associated with the message in question. More particularly, the execution in question is triggered by the receipt of the event notification message 230 by the terminal and is performed without knowledge of the time information indicative of the execution time by the terminal of said at least one action in question. In other words, the at least one action is executed by the terminal 110, immediately upon receipt of the event notification message 230, after an execution latency only related to constraints of hardware implementations in the terminal ( no temporal information of execution of the at least one action in question is not otherwise present in the event notification message 230 nor provided to the terminal by any other means).
- the at least one action is executed at the earliest moment upon receipt of the event notification message 230.
- the latency of The execution in question may take into account a delay of a fixed predetermined duration, for example so that the signaling method according to the invention is supported by different types of terminals as discussed below in relation to FIG. in this case, the delay only depends on the nature of the terminal and is not indicative of the time of execution by the terminal of the said at least one action in question.
- the signaling of the substitution is based on the implementation in the terminal 110 of existing standards although not dedicated to the signaling of events called "real time", ie whose notification messages do not contain any time reference allowing a synchronous execution with respect to the broadcast data stream (here DSM-CC "streamevent" messages in the embodiments considered).
- the generation step E310 implemented within the system 100 comprises a sub-step of encapsulation of at least one identification information item 2120b31 in the event notification message 230.
- the execution step E430 implemented by the terminal 110 comprises a substep of obtaining E430a, by the terminal 110, of the at least one identification information item 2120b31 in the notification message d. event 230.
- the at least one action and function of the at least one identification information 2120b31 are reported simply and directly to the terminal.
- the event notification message 230 comprises a unique identification information 2120b31 that can take several values each associated, in the terminal, with a set of at least one action.
- a particular event (e.g. the beginning of the broadcast content to be substituted, the end of the broadcast content to be substituted, etc.) is reported to the terminal via the unique identification information 2120b31.
- the event notification messages mark the flow of data conveying the broadcast content.
- the terminal thus deduces from the event that is notified to it one or more actions to be performed for the substitution of the broadcasted content.
- the action or actions to be performed are obtained in the terminal via an algorithm taking into account the event in question but also other events that have been signified at the terminal prior to the event in question if appropriate (eg the notified events in question serve as inputs to a state machine, the transitions between states being a function of the notified events in question, the actions to be performed being associated with a given state).
- a waiting message (eg a logo in motion, a GIF (for Graphics Interchange Format) animated, an inter-advertising sequence, a message waiting audio, etc.) is for example reproduced (visually and / or audibly) while the decoder initiates a new decoding, thus avoiding a lack of restitution to the user (eg a black screen) during this time. the.
- Such a set of actions to be performed, as well as, if appropriate, the set of events and an associated algorithm, are for example provided to the terminal 110 via the HbbTV application discussed above in relation with FIG.
- substitution information packet 220 further comprises: the first information item 2120b1 for identifying an elementary stream component of the data stream conveying the broadcast content; the second information 2120b2 making it possible to identify an event flow in the elementary flow component; and
- the event notification message 230 is inserted into the event stream in question (identified by the first 2120bl and second 2120b2 information).
- the generation step E310 implemented within the system 100 further comprises an encapsulation sub-step E310b of the filtering information 2120b32 and the second information item 2120b2 in the event notification message 230 .
- the terminal 110 also performs a reception step E410 of the same first 2120b1 and second 2120b2 information, as well as the 2120b32 filtering information, but via the broadband network 130 (eg via the file in XML format for the first time). (2120bl) and second (2120b2) information, and via the HbbTV application for the filtering information (2120b33) as discussed above in connection with Fig. 1).
- the reception step E420 of the event notification message 230 is a function of the first 2120bl and the second information 2120b2, so as to identify the event flow of the elementary flow component in which the notification message of event 230 has been inserted, and 2120b32 filtering information, to identify the event notification message 230 within the identified event stream.
- the 2120b32 filtering information is a 2120b33 identifier of the broadcast content to be substituted by targeted content.
- the quantity of data conveyed in the system 100 implementing the signaling method is thus minimized, the same identifier making it possible to indicate to the different entities of the system 100 and to the terminal 110 the content to be substituted, and the terminal 110 to filter the event notification messages intended for it.
- the use of a content identifier 2120b33 broadcast as 2120b32 filtering information for a given set of terminals among the plurality of terminals makes it possible to signal to all the terminals of the set in question that they will have to perform a substitution of the same broadcasted content (corresponding to the identifier 2120b33 ).
- each terminal of the set of terminals in question having received a specific HbbTv application from the static internet server 100a via the broadband network 130, the substitution content remains targeted (via the information contained in the particular HbbTv applications in question) for the corresponding terminal, even though the same 2120b32 filtering information was used for all terminals in the set.
- such 2120b32 filtering information corresponding or not to the identifier 2120b33 of the broadcasted content to be substituted, makes it possible to signal to the terminal 110 which targeted content to use, among a plurality of targeted contents previously downloaded, for perform the substitution of the broadcast content.
- the terminal 110 also performs an E400 reception step of the targeted content (s):
- the broadband network 130 to which it is connected for example via the HbbTV application, making it possible to minimize the load on the broadcasting network.
- a packet of substitution information 210 in the SCTE 104 format is obtained by the video coder 100f is from the insertion triggering device 100d, or from the SDI reader 100e.
- the substitute information packet 210 in question comprises:
- o insertion information 2120b4 indicating whether the signaling method implemented by the system 100 further comprises an insertion step E330, by the video coder 100f, in the data stream, of at least one image allowing initiating a decoding, by the terminal 110, of the data stream (eg an intra-coded intra picture or I picture placed at the beginning of a GOP);
- the insertion time slot is such that a time difference, in said data stream, between the at least one image and the event notification message 230 (inserted in the stream during the step insertion method E320 described above) is greater than the aforementioned execution latency.
- the resumption of the decoding by the terminal 110 of the broadcasted content signaled by the event notification message 230 can start concomitantly with the reception of the image in question by the terminal 110.
- the wait before the beginning of the resumption of the decoding of the diffused content, and therefore the duration of restitution of the waiting elements as well as the risk of a lack of restitution to the user (eg a black screen) to the end of the rendering of such a waiting element is minimized.
- the video coder 100f does not obtain insertion information 2120b4 and systematically performs the insertion step E330 of the at least one image in question with a time difference. as defined above. Such a time difference is for example predefined. Thus, the amount of information conveyed within the system 100 is minimized.
- a preparatory event notification message 230 is inserted at time t0 by the MPEG / DVB multiplexer 100g into the data stream, for example five minutes before advertising Pub2 to substitute.
- the preparatory event notification message 230 encapsulates, among other things, identification information 2120b31 identifying the event: "preparation for a substitution".
- the terminal 110 executes a set of actions defined for this event by the application HbbTV obtained via the broadband network 130 from of the static internet server 100a.
- the terminal 110 receives the information on the advertisements to be substituted, here Pub2 advertising. It also receives the alternative advertisements by implementing step E400 described above in connection with FIG. 4 and then waits for the reception of a first event notification message 230 encapsulating, inter alia, information 2120b31 identifying the event: "beginning of inter advertisement before advertisement pub2".
- the first event notification message 230 identifying the event: "publicity start prior to advertisement pub2" is inserted at time t1 by the MPEG / DVB multiplexer 100g into the data stream.
- the time t1 at which the first event notification message 230 is inserted into the stream corresponds substantially to the beginning of the inter-advertisement sequence preceding the Pub2 advertisement to be substituted. Indeed, in practice such a time tl can be chosen with a certain tolerance with respect to the beginning of the sequence inter advertisements in question.
- the first event notification message 230 is inserted into a data packet (eg a data packet in the MPEG2-TS sense) preceding one or a few packets of the first packet carrying the data of the inter-advertisement sequence. in question.
- the first event notification message 230 is inserted into a packet of the next data stream of one or a few packets the first packet conveying the data of the inter-advertisement sequence in question. In yet other variants, the first event notification message 230 is inserted into a packet just before the data packet conveying the first image of the inter-advertisement sequence preceding the Pub2 advertisement to be substituted.
- the HbbTV application executed by the terminal 110 implements a fixed predetermined delay (whose utility is specified hereinafter), which is not reprogrammable on the fly via event notification messages 230 or via other information conveyed by the data stream, and which is part of the latency of execution of the action sets by the terminal.
- a fixed predetermined delay whose utility is specified hereinafter
- Such latency is therefore solely related to hardware implementation constraints in the terminal, and is not a function of information conveyed by the data stream.
- the fixed predetermined delay makes it possible to synchronize the execution of the set of actions with respect to the content conveyed by the data stream.
- different terminal models 110 potentially having different intrinsic latencies, can be assigned the same execution latency so that a first event notification message 230 inserted at time t1 is processed in the same time (in terms of synchronization of the execution of the action set with respect to the content conveyed by the data stream) by all the terminals receiving the first event notification message 230, regardless of their type .
- a given terminal receives on the one hand an identifier of the action to be executed and on the other hand a temporal information representative of the time of execution of the action in question.
- the terminal executes the action to be executed.
- the terminal takes into account its intrinsic latency execution so that the action in question is actually executed at the time of execution corresponding to received time information.
- the terminal 110 executes immediately (ie after a given execution latency (predetermined or intrinsic)) a set of actions defined for this event by the application H bbTV obtained via the wide network. band 130 to the static internet server 100a, the execution being triggered by the reception of the first event notification message 230.
- the terminal executes the action set without knowledge of a temporal information (information which would have been otherwise provided) indicative of a moment of execution, by the terminal, of the set of actions in question.
- the terminal 110 For example, the terminal 110:
- a second event notification message 230 is inserted at time t2 by the MPEG / DVB multiplexer 100g into the data stream. More particularly, the time t2 at which the second event notification message 230 is inserted into the stream corresponds substantially to the beginning of the advertisement Pub2 to be substituted in the same manner as the first event notification message 230 is inserted into the advertisement. flows substantially at the beginning of the inter-advertisement sequence preceding the advertisement Pub2 to be substituted as discussed above in relation to the time t1 (ie with a certain tolerance with respect to the beginning of the sequence in question).
- the second event notification message 230 encapsulates, among other things, identification information 2120b31 identifying the event: "advertising start pub2".
- the terminal 110 After execution latency only related to constraints of hardware implementations in the terminal from the receipt of the second event notification message 230, the terminal 110 immediately executes a set of actions defined for this event by the HbbTV application. In other words, the terminal executes the action set without knowledge of temporal information indicative of a moment of execution, by the terminal, of the set of actions in question. For example, the terminal 110: starts playing the decoded targeted advertisement, renders the decoded targeted advertisement on its screen and hides the image of inter advertisements.
- a third event notification message 230 is inserted at time t3 by the MPEG / DVB multiplexer 100g into the data stream. More particularly, the time t3 at which the third event notification message 230 is inserted into the stream corresponds substantially to the beginning of the advertisement sequence following the advertisement Pub2 to be substituted in the same manner as the first event notification message. 230 is inserted into the stream substantially at the beginning of the inter-advertisement sequence preceding the advertisement Pub2 to be substituted as discussed above in relation to the time t1 (ie with a certain tolerance with respect to the beginning of the sequence in question).
- the third event notification message 230 encapsulates, among other things, identification information 2120b31 identifying the event: "end of advertisement".
- the terminal 110 immediately executes a set of actions defined for this event by the HbbTV app.
- the terminal executes the set of actions without knowledge of a temporal information indicative of a time of execution, by the terminal, of the set of actions in question.
- the terminal 110 displays on its screen the inter advertisement image, stops the decoding of the targeted advertising, initiates the decoding of the broadcasted content and begins the display in the background of the decoded broadcast content.
- the video coder 100f is notified, via a packet of substitution information 210 in the SCTE format 104, to the video coder 100f to place an image making it possible to initiate a decoding, by the terminal 110, of the data stream (eg an image I from a GOP start).
- the image it is sufficient for the image to be inserted into the stream after the third event notification message 230, with a time difference with the third event notification message 230 in question that is greater than an execution latency of the action inducing decoding by the terminal.
- the decoder will take into account the image in question when it starts the decoding.
- a fourth event notification message 230 is inserted at time t4 by the MPEG / DVB multiplexer 100g into the data stream. More particularly, the time t4 at which the fourth event notification message 230 is inserted into the stream corresponds substantially to the beginning of the Pub3 advertisement following the Pub2 advertisement to be substituted in the same manner as the first event notification message 230. is inserted in the stream substantially at the beginning of the inter-advertisement sequence preceding the advertisement Pub2 to be substituted as discussed above in relation to the time t1 (ie with a certain tolerance with respect to the beginning of the sequence in question).
- the fourth event notification message 230 encapsulates, among other things, identification information 2120b31 identifying the event: "end of inter advertisements after advertisement pub2".
- the terminal 110 immediately executes a set of actions defined for this event by the HbbTV app.
- the terminal executes the set of actions without knowledge of a temporal information indicative of a time of execution, by the terminal, of the set of actions in question.
- the terminal 110 masks the inter advertisement image which allows the display of the broadcast stream. The substitution of pub2 publicity is then complete.
- the event "beginning of inter advertisement” for the second advertisement to be substituted, and the event “end of advertising” for the first advertisement to be substituted can be notified to the terminal 110 via one and the same event notification message 230.
- the actions described above in relation to T1 are also implemented at the instant. t3 (in addition to the actions already described above in relation to t3) in order to prepare the substitution of Pub3.
- the actions described above in relation to t2 are also implemented at time t4 (in addition to the actions already described above in relation to t4) in order to effectively perform the substitution of Pub3.
- the video decoder of the terminal 110 notifies the HbbTV application, via an event El, that the decoding of the targeted advertisement initiated following the reception of the first event notification message 230 is now effective, ie that the targeted advertising is now available for display by the terminal 110.
- the application HbbTV if the application HbbTV is notified of the event El before receiving the second event notification message 230 above, the application HbbTV masks the inter-advertisement image and displays the targeted advertisement without waiting for the receipt of the second event notification message 230.
- the inter-advertisement sequence preceding the advertisement Pub2 to to substitute will be shorter than in the case described above in relation to Figure 5, thereby maximizing the time available for substitution advertising.
- the video decoder of the terminal 110 notifies the HbbTV application, via an event E2, that the decoding of the targeted advertisement initiated following the reception of the first event notification message 230 is now complete.
- the HbbTV application in question displays on the screen of the terminal 110 the image of Advertisements without waiting for the receipt of the third event notification message 230.
- the inter-advertisement sequence preceding the advertisement Pub3 will be longer. This allows for example to limit the risk to encroach on the beginning of Pub3 advertising when returning to the decoding of the data stream.
- the risk of a lack of restitution to the user eg a black screen
- the HbbTV application may not take into account the event El or the event E2.
- the HbbTV application displays the targeted advertisement in place of Pub2 upon receipt of the second event notification message 230 or displays on the screen of the terminal 110 the image of inter advertisements upon receipt of the third message. of event notification 230 as described above in connection with FIG. 5.
- FIG. structure of the television broadcast system 100 enabling the method of FIG. 3 to be implemented.
- the system 100 comprises a random access memory 603 (for example a RAM memory), a processing unit 602 equipped for example with a processor, and driven by a computer program stored in a read-only memory 601 (for example a ROM or a hard disk).
- a computer program stored in a read-only memory 601 (for example a ROM or a hard disk).
- the code instructions of the computer program are for example loaded into the RAM 603 before being executed by the processor of the processing unit 602.
- FIG. 6 only illustrates one of several possible ways of realizing the system 100, so that it performs certain steps of the method detailed above, in connection with FIG. 3 (in any one of the various embodiments). ). Indeed, these steps can be performed indifferently on a reprogrammable calculation machine (a PC computer, a DSP processor or a microcontroller) executing a program comprising a sequence of instructions, or on a dedicated computing machine (for example a set of logical gates such as an FPGA or an ASIC, or any other hardware module).
- a reprogrammable calculation machine a PC computer, a DSP processor or a microcontroller
- a program comprising a sequence of instructions
- a dedicated computing machine for example a set of logical gates such as an FPGA or an ASIC, or any other hardware module.
- the corresponding program (that is to say the sequence of instructions) can be stored in a removable storage medium (such as for example a diskette, CD-ROM or DVD-ROM) or not, this storage medium being readable partially or totally by a computer or a processor.
- a removable storage medium such as for example a diskette, CD-ROM or DVD-ROM
- the entities 100a to 100h constituting the system 100 of FIG. 1 are embodied as partially or completely separate hardware components.
- the material components in question all include means equivalent to those described above in relation with FIG.
- FIG. 7 shows an example of the structure of the terminal 110, enabling the method of FIG. 4 to be implemented.
- the terminal 110 comprises a random access memory 703 (for example a RAM memory), a processing unit 702 equipped for example with a processor, and driven by a computer program stored in a read-only memory 701 (for example a ROM or a hard disk).
- a computer program stored in a read-only memory 701 (for example a ROM or a hard disk).
- the code instructions of the computer program are for example loaded into the RAM 703 before being executed by the processor of the processing unit 702.
- FIG. 7 only illustrates one of several possible ways of realizing the means included in the terminal 110 so that it performs certain steps of the method detailed above, with reference to FIG. 4 (in any one of the different embodiments). Indeed, these steps can be performed indifferently on a reprogrammable calculation machine (a PC computer, a DSP processor or a microcontroller) executing a program comprising a sequence of instructions, or on a dedicated computing machine (for example a set of logical gates such as an FPGA or an ASIC, or any other hardware module).
- a reprogrammable calculation machine a PC computer, a DSP processor or a microcontroller
- a program comprising a sequence of instructions
- a dedicated computing machine for example a set of logical gates such as an FPGA or an ASIC, or any other hardware module.
- the corresponding program (that is to say the sequence of instructions) can be stored in a removable storage medium (such as by example a floppy disk, a CD-ROM or a DVD-ROM) or not, this medium of storage being readable partially or totally by a computer or a processor.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
- Computer And Data Communications (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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EA202090274A EA202090274A1 (ru) | 2017-07-12 | 2018-06-27 | Способ сигнализации о замене оконечному устройству, способ замены оконечным устройством, соответствующие компьютерные программные продукты, система и оконечное устройство |
AU2018299752A AU2018299752B2 (en) | 2017-07-12 | 2018-06-27 | Method for signalling a substitution to a terminal, method for substitution by a terminal, corresponding computer program products, system and terminal |
ES18732387T ES2922363T3 (es) | 2017-07-12 | 2018-06-27 | Método de señalización de una sustitución a un terminal, método de sustitución por un terminal, productos de programas informáticos, sistema y terminal correspondientes |
EP18732387.8A EP3652953B1 (fr) | 2017-07-12 | 2018-06-27 | Procédé de signalisation d'une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1756595 | 2017-07-12 | ||
FR1756595A FR3069123B1 (fr) | 2017-07-12 | 2017-07-12 | Procede de signalisation d'une substitution a un terminal, procede de substitution par un terminal, produits programme d'ordinateur, systeme et terminal correspondants. |
Publications (1)
Publication Number | Publication Date |
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WO2019011655A1 true WO2019011655A1 (fr) | 2019-01-17 |
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PCT/EP2018/067266 WO2019011655A1 (fr) | 2017-07-12 | 2018-06-27 | Procédé de signalisation d'une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants |
Country Status (6)
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EP (1) | EP3652953B1 (fr) |
AU (1) | AU2018299752B2 (fr) |
EA (1) | EA202090274A1 (fr) |
ES (1) | ES2922363T3 (fr) |
FR (1) | FR3069123B1 (fr) |
WO (1) | WO2019011655A1 (fr) |
Cited By (2)
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WO2021064226A1 (fr) | 2019-10-04 | 2021-04-08 | Enensys Technologies | Procédé de signalisation d'une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants |
WO2022214586A1 (fr) | 2021-04-09 | 2022-10-13 | Enensys Technologies | Procédés et dispositifs d'insertion d'un événement dans un flux de transport, de surveillance, de gestion et de réception du flux de transport, et programme d'ordinateur correspondants |
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WO2014004955A1 (fr) * | 2012-06-28 | 2014-01-03 | Azuki Systems, Inc. | Procédé et système d'insertion de publicité dans la distribution ott (over the top) de contenus multimédias en direct |
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US20170048565A1 (en) * | 2015-06-03 | 2017-02-16 | Mobitv, Inc. | Live consecutive ad insertion |
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2017
- 2017-07-12 FR FR1756595A patent/FR3069123B1/fr active Active
-
2018
- 2018-06-27 EP EP18732387.8A patent/EP3652953B1/fr active Active
- 2018-06-27 ES ES18732387T patent/ES2922363T3/es active Active
- 2018-06-27 AU AU2018299752A patent/AU2018299752B2/en active Active
- 2018-06-27 WO PCT/EP2018/067266 patent/WO2019011655A1/fr active Application Filing
- 2018-06-27 EA EA202090274A patent/EA202090274A1/ru unknown
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US20110145857A1 (en) * | 2009-12-16 | 2011-06-16 | Microsoft Corporation | Scalable advertising system for dynamically inserting advertisements |
WO2014004955A1 (fr) * | 2012-06-28 | 2014-01-03 | Azuki Systems, Inc. | Procédé et système d'insertion de publicité dans la distribution ott (over the top) de contenus multimédias en direct |
WO2016098059A1 (fr) * | 2014-12-19 | 2016-06-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Insertion publicitaire personnalisée basée sur l'utilisateur final dans des terminaux hybrides à bande large de diffusion |
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WO2021064226A1 (fr) | 2019-10-04 | 2021-04-08 | Enensys Technologies | Procédé de signalisation d'une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants |
FR3101744A1 (fr) * | 2019-10-04 | 2021-04-09 | Enensys Technologies | Procédé de signalisation d’une substitution à un terminal, procédé de substitution par un terminal, produits programme d'ordinateur, système et terminal correspondants |
CN114731452A (zh) * | 2019-10-04 | 2022-07-08 | 埃内塞斯技术公司 | 向终端发出替换信号的方法、由终端进行替换的方法,对应的计算机程序产品、系统和终端 |
US20230025628A1 (en) * | 2019-10-04 | 2023-01-26 | Enensys Technologies | Method for signalling a substitution to a terminal, method for substitution by a terminal, and corresponding computer program products, system and terminal |
US11889129B2 (en) | 2019-10-04 | 2024-01-30 | Enensys Technologies | Method for signaling a substitution to a terminal, method for substitution by a terminal, and corresponding computer program products, system and terminal |
CN114731452B (zh) * | 2019-10-04 | 2024-02-13 | 埃内塞斯技术公司 | 向终端发出替换信号的方法、由终端进行替换的方法,对应的计算机程序产品、系统和终端 |
WO2022214586A1 (fr) | 2021-04-09 | 2022-10-13 | Enensys Technologies | Procédés et dispositifs d'insertion d'un événement dans un flux de transport, de surveillance, de gestion et de réception du flux de transport, et programme d'ordinateur correspondants |
FR3121809A1 (fr) | 2021-04-09 | 2022-10-14 | Enensys Technologies | Procédés et dispositifs d’insertion d’un événement dans un flux de transport, de surveillance, de gestion et de réception du flux de transport, et programme d’ordinateur correspondants. |
Also Published As
Publication number | Publication date |
---|---|
AU2018299752A1 (en) | 2020-01-30 |
EP3652953A1 (fr) | 2020-05-20 |
FR3069123B1 (fr) | 2021-10-08 |
EP3652953B1 (fr) | 2022-04-13 |
EA202090274A1 (ru) | 2020-04-27 |
FR3069123A1 (fr) | 2019-01-18 |
AU2018299752B2 (en) | 2023-05-11 |
ES2922363T3 (es) | 2022-09-13 |
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